Gordon Hayward is playing 5-on-5 and believes he's fully recovered from the broken ankle that derailed his Celtics debut before it started last year.

Speaking to reporters at the team's new training facility in Brighton on Thursday, including ESPN's Chris Forsberg, Hayward said challenges remain before he's the player he was prior to his injury.

"I would say I'm basically 100 percent," Hayward said. "There's certain things that I think are going to take time, even if I was 100 percent healthy. I'm not 100 percent as far as basketball-wise, just because I haven't played in a year.

"I'm trying to figure those things out. The last step for me as far as from a physical standpoint is a little explosion, that little last juice bounce that you get. So that's going to take me the longest time. But like I said, for the most part, I feel very good."

Hayward, who donned his green No. 20 uniform in front of reporters at the Auerbach Center, said the next month will be pivotal before the season begins.

"It's so much fun being able to play again, and play with my teammates," Hayward said. "Using these past two weeks, and the next month or so, will be good to kind of get back into the game, feel the rhythm, the timing, different things like that. But it feels pretty good."

Hayward detailed the monotony and mental difficulty of his rehab, noting that while teammates were playing in Miami or Los Angeles last year, he was driving in frigid temperatures to lift marbles into a bucket with his toes.

He also said he hasn't watched the video of his injury, nor does he plan to.

"I haven't watched it," he told reporters. "Scrolling through Instagram -- you know how today's social media works -- I've seen it on my search feed a little bit, but I haven't watched the video. I don't plan on watching the video. I'm moving forward -- and past it."